1 / 12

Open-Notes QUIZ TODAY

Open-Notes QUIZ TODAY. Over: Pressure, Fluids, Gas Laws. Gas Laws. Bellwork – When gas in a hot-air balloon is heated, does it become more dense or less dense ( why does the balloon rise? ). Gas Laws.

dieter
Download Presentation

Open-Notes QUIZ TODAY

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Open-Notes QUIZ TODAY Over: Pressure, Fluids, Gas Laws

  2. Gas Laws Bellwork – When gas in a hot-air balloon is heated, does it become more dense or less dense ( why does the balloon rise? )

  3. Gas Laws Bellwork – When gas in a hot-air balloon is heated, does it become more dense or less dense ( why does the balloon rise? ) The gas is less dense / more spread out Particles are further apart

  4. Gas Laws • How did we define a LAW?

  5. Gas Laws • How did we define a LAW? • PREDICTS some action or behavior • Gas Laws predict gas behavior in specific conditions • CONDITIONS are Pressure, Temperature, Volume

  6. Boyle’s Law • Product of pressure and volume is constant • Pressure and Volume are INVERSELY Proportional • P1V1 = P2V2 = CONSTANT • “1” indicates initial conditions or a “before” • “2” indicates final conditions or an “after”

  7. Gay-Lussac’s Law

  8. Charles’s Law

  9. Go back to Labtops –TAKE NOTES • Again at the PhET site, search for “Gas Properties” simulation • RUN simulation • Add gas ( choose light species ) – set value to 1 • See that this number tells you # of particles • Increase gas value to 150 (USE PUMP , then adjust)

  10. Example of Boyle’s Law • If a gas has a volume of 325 mL at a pressure of 478 mmHg, what will the pressure be at a volume of 416 mL? • P1V1 = P2V2 = CONSTANT

  11. Example of Boyle’s Law • P1V1 = P2V2 = CONSTANT • ( 478 ) * ( 325 ) = 155350 ( our constant ) • 155350 = P2V2 = P2 * ( 416 ) • P2 = 155350 / 416 = 373 mmHg

  12. Using Boyle’s Law • From this example, how are pressure and volume related? • As Pressure increased, volume decreased • The opposite can happen ( vol increase, pressure decrease ) • This is what meant by INVERSELY proportional

More Related